Accelerator for motor-car engines



W. A. NORDSTROM ACCELERATOR FOR MOTOR CAR ENGINES Apr; 24, 1923.

2 Sheets-Sheet 1 Fi]ed Oct. 28, 1921 Apr. 24, 1 923;

W. A. NORDSTROM ACCELERATOR FOR MOTOR CAR ENGINES Patented Apr. 24, 19 23.

umrso srrss WILLIAM A. NORDSTROM, OF JAMESTOWN, 'NEW YORK.

ACCELERATOR FOE MOTOR-CAR ENGINES.

, Application filed October 28, 1921. Serial No.'511,203.

To all whom it may concern:

Be it known that I, WILLIAM A. Nonns'rnou, a citizen of the United States, residing at the city of Jamestown, in thecounty of Chautauqua and State of New York, have invented certain new and useful Improvements in Accelerators for Motor-Car Engines, of which the following, taken in connection with the accompanying drawings, is a specification.

The invention relates to pedal accelerators and is especially adapted to internal combustionengines in motor cars; and the object of the improvement is to provide a sidewise extending pedal having aradially toothed adjustable coupling to an actuating lever for the carburetor to adjust said pedal to the foot boards of motor cars, said sidewise extension of the pedal permitting direct attachment to said carbureter through the dash board by means of said actuating lever, a resilientlink, and a throttle plate, adjustable rod connection being provided between said throttle plate connection; and the steering post on the opposite side of the engine for. manual acceleration, therebygiving a direct positive connection to the carburetor on the right side of the same and simplifying and strengtheningthe entire structure,

rendering it more adaptable to different motor car constructions; and the invention consists in the novel features and combinations hereinafter set forth and claimed.

In the drawings, Figure 1 is an elevation of the right side of the engine showing the accelerator mechanism attached to the dash board of the motor car. Fig.2 is, a top plan view of the accelerator mechanism as attached. to the dash boardand connected to the carbureterand the throttle rod of the steering post. Fig. 8 is a perspective view of the sidewis'e extending pedal. with its ra dially toothed flange for adjustable cou-' pling'with the upper end of the operating lever. Fig. 4: is a top plan view of said upper end of the operatinglever showing the second half of the radial flange coupling and the plate which pivotally supports the operating lever on the dash board. Fig. 5 is an elevation of said operating lever with the attaching platepivotally attachedthereto. link joint between the throttle plateand the lower end of-the operating lever. Fig. 7 is 1 a perspective view of the throttle plate and bracket piece with a portion of the" connect- Fig. 6 is an elevation'of the resilient ing rod to the throttle rod of the steering.

post as connected to the carbureter. Figure 8 is a detailed perspective of the lever spring. I

, Like characters of reference refer to corresponding parts in the several views.

The numeral 10 designates the sidewise extending pedal which has the foot plate 11 at one end and the flange 12 with the radial teeth 13 near the other end, said other end being threaded at 14 to permit attachment,

to the operating lever 15 by means of a suitable7screw nut 16, and the flange coupling The upper end of the lever 15 has the flanged enlargement 17 which is radially.

toothed at 18 to adjustably enter the teeth 13 of the flange 12, thereby adjustably attaching the pedal end 11, at the desired height above the foot board 19 in the different motor cars. A plate 20'is pivota'lly a tached at 21' to the. upper portion of the lever 15 for attachment to the dash board 22 by means of suitable screw, bolts 23,

which operating lever extends throughsaid dash board and plate. The actuating lever 15 has the downwardly turned end 24 which extends downward nearly to the level of the top of the carbureterconnection 25.

A strong spring 26 is attached by its looped upper ends 27 and the screw] bolts 23 to the dash board 22, thereby normally drawing the lever 15 strongly toward the dash board 22 and returning theactuating lever 15 and pedal 10 to the normally raised position ready for, renewed actuation. The lower end of the actuating lever 15 has the eye 28 to receive thereinthe hooked end of the link 29 which connects said lower end 2 1 to the throttle plate 30.

Th link 29 is made resiliently adjustable by being made in two parts 31, and 32 which loop around one another and retain therebetween the coil spring 33 so as to normally hold said parts 31 and 32 apart. This is rendered necessary by the manual actuation fromthe rod 10 on the steering post since if the link 29 would not resiliently permit th manual actuation of the operating arm 36 of the carburetor 25, then such manual actuation would have to operate thev pedal of the link is arranged. A stop-washer 35;

is attached on the part 32 of the link 29 so that when pedal actuated, the part 31 will press against said stop 35 as shown in Figs. 1 and2, and when manually actuated, the stop 35 and part 32 will be drawn away from the part 31 as shown in Fig. 6. The spring 33 will throw all the parts back to the normal pedal or manual actuating position with the loop on the part 31 pressing against the stop 35.

The link part 32 is preferably attached to the throttle plate 30 by means of a pin 34 with enlarged head to receive the end of the part 32 of the resilient link 29 in threaded engagement through said head.

A cotter pin 46 is inserted through a hole in the end of-the part 32 which engages on a portion of the head 34, thereby preventing th turning of the part 32, holding it in alinement with the part 31 of the resilient link 29. Said part 31 is held in line by the insertion of its hooked end in the hole 28 in the end of the lever 15.

The pin. 34 is attached in the end of the throttle plate 30 preferably by a removable cotter pin. It would not depart from my invention, however, to turn the end of the throttle plate 30 upward to receive the end of the link 32 therethrough. or to turn the end of said link downward through the hole in the throttle plate 30. The present construction is preferred merely because of the possibility of closer adjustment therewith.

The throttle plate 30 is provided with a bifurcated portion forming downwardly extending lugs 30 which are desired to freely straddle the operating arm 36 of the throttle valve of carbureter 25 by means of a suitable screw bolt 37, which screw bolt also attaches the angle bracket 38 which supports the end of the connecting rod 39 to the manual throttling rod 40. The connection to the steering post 40 is attained by means of the bracket 41 and adjusting plate 42 and screw 7 thread 43 with cotter pin 44 in the end of the rod 39 to prevent its turning or withdrawal in case the threads should strip in the ends of said rod. The rod 39 extends across through the engine 45 drawing di .rectly upon the rod 40 of the steering post whenthe carbureter is operated manually.

In accelerating the speed of the engine by depressing the pedal 11 the link element 31 is caused to slide on the link element 32 until the former is engaged with stop 35 whereupon the link elements constitute a posltlve connection between the lever 15 and the throttle plate 30. During this operation the rod 39 slides through the plate 42. Upon releasing the pedal from pressure the spring 26 returns the several parts to normal position. lVhen the engine is under manual control so that a pull on rod 39 is required to open the throttle, the link element 32 will then slide on the link element 31 and compress the spring 33 so that when the manual control is released said spring will tend to restore the several parts to their normal position.

It is now apparent that my simple accelerating mechanism may be quickly and easily installed upon motor cars, the assemblage being exceedingly simple and adjustment accurate and exact, the sidewise extending pedal 10 being of sufficient length to be easily operated along with the other operating levers with-out sidewise foot movement.

\Vhat is claimed as new is: j

1. In combination with an operating arm of a throttle valve, an actuating lever, an elongated throttle plate having one end secured to the free outer end of the arm and formed with a pair of lateral, depending ears for freely straddling said outer end of the arm to prevent relative pivotal movement between said arm and plate, and means connecting the opposite end of the plate to the lever.

2. In combination with a motor car, an engine accelerator comprising a bracket plate attached to the dash board of said car, an angular operating lever pivotally attached through said plate, a sidewise extending foot pedal adjustably attached to the upper end of said operating lever, resilient link connection between the lower end of said actuating lever and the throttle plate of the its ends tosaid dash board and having its "intermediate portion extending over said actuating lever to normally hold said sidewise extending pedal in the normally raised position for foot actuation.

3. In combination with a motor car, an engine accelerator comprising a bracket plate attached to the dash board of said car, an angular spring operating lever pivotallyattached to said plate, a sidewise extending foot pedal, a radially toothed flange coupling between said sidewise extending pedal and the upper end of said angular operating lever to adjust the position of said pedal as to the foot board of the motor car, a spring controlled link connecting the lower end of said operating lever and the throttle plate for the carbureter, said throttle plate having downwardly extending lugs eachside of carbureter, and a bowed spring secured at the actuating lever for the carbureter, and.

adjustable rod connection between said'carbureter arm and the steering post of the motor car to permit hand actuation of said carburetor.

4. An engine accelerator comprising an angular spring operating lever and means for ivotally attaching said lever to the dash board of a motor car, a sidewise extending foot pedal from said operating lever and means for adjusting the relation of said foot pedal to the foot board of the motor car, a throttle plate for the carbureter, aresilient link connecting the'end of said operating lever to said throttle plate, said throttle plate engaging the actuating lever of the carbureter to actuate the same, said resilient link comprising two parts looped around one another to form a slidable engagement on one another a coil spring on one of said parts between the loop portions to resiliently hold said loop portions a distance apart a stop on the link portion attached to said throttle plate to receive the looped end on the other part and permit pedal actuation by means of said resilient link, and an adjustable rod connection between the actuating arm of said carbureter and the throttle rod of the steering post to permit manual and pedal actuation of said carbureter without interference.

In combination with an operating arm of a throttle an actuating lever, and a resilient connection between the arm and lever and comprising a pair of link elements having overlapping portions formed with terminal eyes slidably receiving the companion link element, a spring interposed between the terminal eyes tending to extend the link elements relatively to each other, and a stop on one element beyond the spring to be engaged by the opposite terminal eye to establish a positive push connection between the lever and arm.

6. In combination with a motor car, an engine accelerator comprising a bracket plate attached to the dash board of said car, an

normally raised position for foot actuation.

In testimony whereof I have aflixed my signature in the presence of two witnesses.

WILLIAM A. NORDSTROM.

Witnesses:

CORINNE V. SwANsoN, GERTRUDE LAWSON. 

